Casement-window.



Patented Apr. 23, 1918.

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ROBERT L. LATI-IAIJE, OF MINNEAPOLIS, MINNESOTA.

GASEMENT-WINDOW.

Application filed May28, 191?.

To all whom it may concern: 7

Be it known that 1, ROBERT L. LATHAM, a citizen of the United States, residing at Minneapolis, in the county of Hennepin and State of Minnesota, have invented certain new and useful Improvements in Casement- Windows; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

Particularly, my invention relates to case ment windows and has for its object to provide an improved mounting therefor. The term casement however, is herein used in a broad and liberal sense and would include any arrangement of swinging sashes, doors or .panels.

In accordance with my invention, the casement sashes are mounted for both pivotal and sliding movements and they are connected in a novel manner, so that they may he slid, either all to one side of the window opening, or part to each side thereof, and then turned pivotally either inward or outward and folded together, leaving a very considerable part of the window opening absolutely clear, and regardless of whether arranged to swing inward or out ward, the sashes will move entirely to one side oftheir guideways, so that storm sashes and screens may be properly applied. Preferably, however, the sashes are arranged to swing inward and they are thus illustrated in the accompanyin drawings, wherein like characters indicate :llkfi parts throughout the several views.

Referring to the drawings,

Figure 1 is a front elevation showing a casement window with its sashes mounted in accordance with my invention;

Fig. 2 is a vertical section on theline 22 of Fig. '1;

Fig. 3 is a horizontal section on the line 3-3 of Fig. 1;

Fig. 41 is anenlarged vertical section with some parts broken away, taken approximately on the line 1- 1 of Figs. .1 and 8;

Fig. 5 is :a fragmentary vertical. section on the line 5-5 of Fig. 3;

Fig. 6 is ,a fragmentary transverse section taken approximately on the line 6-6 of Fig. '3, but showing the sashes swung slightly open;

Fig. is a horizontal. section with parts :broken away and some parts in full, illus- Specification of Letters Patent.

Patented Apr. 23, 191%..

Serial No. 171,398.

trating the manner in which the sashes may be folded together at one side of the window opening;

Fig. 8 is a detail in horizontal section taken just above the left hand end of the lower sash guide or track; and

Fig. 9 is a fragmentary detail partly in horizontal section and partly in plan illustrating a slightly modified construction.

In the drawings, the window opening 10 is withina window frame 11 and is adapted to be closed by a mutiplicity of sashes 12. These sashes 12 are mounted in the window frame for both pivotal and sliding movements and for that purpose the said window frame is provided with upper and lower sash guides or tracks. These 'upper and lower tracks are preferably formed as longitudinal channels in sheet metal strips 13 and 1+1 that are bent to form also weather strips and are applied as facings, respectively, .to upper and lower wooden strips 13 and 1 1. These strips and their metal facings have longitudinal channels 15 and stop shoulders 16. The sashes 12 are of proper vertical dimensions and swing freely but with close engagement between the upper and lower strips 13 and 141 and are seated against the stop shoulders 16.

The pivotal connections between the sash and the sash guides or tracks, is at one edge of the sash and 'is preferably accomplished as follows: Upper and lower metal links 17 are provided at one end with oppositely projectingtrunnions 1S and 19, the trunnions 18 pivotally engaging trunnionseats formed in the upper and lower edge portions of the sash 1S2, .whilethe trunnions 19 are arranged to pivot and slide in the upper and lower track or guidechannels 15. The free ends of the links 17 are pivotally connected to the upper and lower intermediate portions of the sashes 12 at proper points to permit the said sashes to be folded substantially to gether, as shown by dotted lines in Fig. 3, and by full lines in Fig. 7. One of the end sashes 12 has links 17, the trunnions 18 of which are pivoted to theends of the movable stanchion 20, while their trunnions :19, like those of the other links 17 are arranged to pivot and slide in the guide-ways 15. The pivoted edge of the sash at the other side of the window is arranged to engage with a' relatively fixed stanchion 21, secured by screws, or otherwise, to that side of the window frame and normally closing side of the window.

closing movements of the sashes, the movable entrance notches 15 to the guide channels 15 (see Fig. 8). The abutting edges of the sashes and of the stanchions 20 and 21 are preferably rabbeted, so as to form weathertight joints.

In the arrangement shown in the drawings, the stanchion 21 is fixed at one side of the window and the stanchion 20 is movable into and out of engagement with the other side of the window frame, but in long windows, the arrangement may be duplicated with the two sliding stanchions meeting'at the center of the window and with two groups of sashes arranged to be collected and opened at each side of the window opening.

In the construction just described, there is no positive connection between the fixed stanchion 21 and edge of the adjacent sash 12, but in Fig. 9, the said sash is shown as connected to said stanchion by one or more hinges 22.

Fig. 3 shows several ways in which the sashes may be opened, and Fig. 7 shows the way in which they may be opened at one Under opening and stanchion 20 slides along the guideways or channels 15. The links 17 are of such length that they properly position the engaging edges of the sashes when in closed positions, but will throw the sashes laterally together when the sashes are turned into their opened positions. To facilitate movements of the sashes, they are preferably provided with hand grips 23 at their free edges. The fact that the links 17 are pivotally connected to the edges of the sashes coincident with the pivotal and sliding connection between the sashes and runways 15, is obviously of material importance. With this arrangement, pivotal movement of one sash does not impart any movement, whatever, to the sash just at the left but, nevertheless, does impart a sliding movement to the sash'just at the right.

When the fixed stanchion 21 is removed, the sash, one at a time, can be removed from the window frame, simply by passing the trunnions 19 outward through the channels 15". Also, of course, they may be applied by reverse operation. The play which may occur, due to shrinkage of the sashes may be taken up by placing shims behind the fixed stanchion the same.

In opening the window by assembling the sashes, as shown in Fig. 7, a little pressure must be exerted to prevent the trunnions of the first or left hand sash from slipping toward the right in the runways or tracks 19, but with the construction illustrated in Fig. 9, the hinges 22 positively prevent such sliding movement.

It is desirable to have latches for inde- 21, or otherwise adjusting pendently securing the sashes in closed positions, that is, in positions parallel with the runways or tracks. This may be readily accomplished by pivoting small springpressed cam-nosed latches 24; to the said sashes and providing the links 17 with notches or detents to receive the beveled noses of the said latches, as shown in Fig. 5. These latches 24 have exposed finger pieces 25, which, when pressed by the finger, release the said latches from the links and permit the sashes to then be swung into open position. Of course, as long as the sashes are locked to their cooperating links or to one thereof, opening movements of the sashes are impossible. The said latches are applied for engagement with the lower links only.

From inspection of Fig. 3, it will be observed that when the sashes at the left, for example, are swung either to extreme or partly open positions, all sashes toward the right will be caused to travel in the runways or tracks. The said sashes at the right will not be opened by their sliding movements, but may be opened in any desired order by independent swinging movements applied thereto, independently of the sliding movements.

While especially designed for casement windows, the sash mounting may be used. on folding doors or panels, such as frequently used for shifting partitions in auditoriums and elsewhere.

. The sashes will usually be made to slide horizontally and have herein been described as thus operative, but may, nevertheless be arranged to slide in any direction.

What I claim is:

1. The combination with a framed opening having upper and lower longitudinal runways, of a multiplicity of sashes each connected thereto near one edge for sliding pivotal movements, and links connecting intermediate upper and lower portions of the said sashes to the pivoted edge portions of adjacent sashes.

2. The combination with a framed opening having upper and lower longitudinal runways, of a multiplicity of sashes each connected thereto near one edge, for sliding pivotal movements, links connecting intermediate upper and lower portions of the said sashes to the pivoted edge portions of adjacent sashes, a movable stanchion mounted to slide in said runways, and links connecting the ends thereof to the upper and lower intermediate portions of one of the end sashes.

8. The combination with a framed opening having upper and lower longitudinal runways, of a multiplicity of sashes each connected thereto near one edge, for sliding pivotal movements, links connecting intermediate upper and lower portions of the sashes to the pivoted edge portions of adjacent sashes, and relatively fixed and movable stanchions, the former being locked for engagement with the pivoted edge portion of one of the end sashes, and links .connecting the intermediate upper and lower portions of the other end sash to the upper and lower ends of said sliding stanchion.

4. The combination with a framed opening having upper and lower longitudinal runways, of a multiplicity of sashes each connected thereto near one edge for sliding pivotal. movements, links connecting intermediate upper and lower portions of the sashes to the pivoted edge portions of adj acent sash, and relatively fixed and movable stanchions. the former being lockedfor engagement with the pivoted edge portion of one of the end sashes, and links connecting the intermediate upper and lower portions of the other end sash to the upper and lower ends of said sliding stanchion, the said relatively fixed stanchion being removable, and the saidrunwayshaving entrance channels normally cut oil by said fixed stanchion.

5. The combination with a framed openconnected thereto near one edge for sliding pivotal movements, links connecting intermediate upper and lower portions ofthe said sashesto the pivoted edge portions of adjacent sashes, and means forlatching the said sash to the cooperating links.

7. The combination with a framed opening having runways at opposite sides thereof, of a multiplicity of sashes, each connected thereto near one edge for sliding pivotal movements, and links connecting intermediate portions of the sashes to the pivoted edge portions of adjacent sashes.

8. The combination with a framed opening having oppositely disposed guides, of a plurality of sash members, each having, near one of its edges, a sliding pivotaleonnection with said guides, a link pivotally connected at one end to the intermediate portion of one of said sash members and pivotallv connected at its other end to the adjacent sash member, said. last named plvotal connectlon belng 1n axial almement with the sliding pivotal connection of said second named sash member.

9. The combination with a framed opening having upper and lower longitudinal guides, of a multiplicity of sashes, eachconnected thereto near one edge, for sliding pivotalmovements, links connecting the intermediate upper and lower portions of the said sashes to the pivoted edge portion of adjacent sashes, a movable stanchion mounted to slide in said guides, and means connecting it to'the adjacent sash.

In testimony whereof I affix my signa ture in presence of two witnesses.

ROBERT L. LATHAM.

l Vitnesses:

BERNICE Gr. WHEELER, HARRY D. Kimonn.

. tmplee at this patent may be obtained for five cents each,;by addressing the Commissioner of Patents,

Washington, D. G. j a 

